Sash-fastener.



D. A. LYNN.

SASH PASTENER.

APPLICATION FILED AUG. 10. 1914. 1,125,356.

Patented Jan. 19, 1915.

lJK

DAVID LYNN, OF ST. LOUIS, MISSOURI.

SASI-I-FASTENER.

masses.

Specification of Letters Patent.

Patented Jan. 19, 1915.

Application fiied'August 10, 1314. Serial No. 856,029.

I exact description, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to sash fasteners, and more particularly to that class of fasteners that are designed to lock the sashes of a window in either closed or partially opened position.

The principal objects of my invention are, to provide a sash fastener of the character described that is extremely simple in construction, that comprises few parts that can be manufactured cheaply, that can be easily applied to windows of ordinary construction and which is operative only from the inside of the window.

Other objects and desirable features of my invention will be hereinafter set forth.

Figure l of the drawings is a front elevational view of a window, showing the sashes thereof equipped with a fastening device constructed in accordance with my invention. Fig. 2 is an enlarged front elevational View of the portions of the upper and lower sashes, to which my improved fastening device is applied. Fig. 3 is a vertical sectional view taken on the line 33 of Fig. 2. Fig. 4: is a detail perspective View, illustrating one of the disks that are employed for retainingthe locking element in position in the sash; and Fig. 5 is a perspective View of said locking element.

Briefly described, my invention consists in providing one of the sashes of a window with a slidingly mounted locking element that cooperates with one of a plurality of apertures formed in the other sash, so as to lock the two sashes together in either closed or partially open position, in such a manner that said locking element cannot be actuated from the outside of said window.

In the preferred form of my invention, as

illustrated in the accompanying drawings,

A and B designate, respectively, the lower and upper sashes of a window and C designates the locking element that is arranged in said lower sash, and which is adapted to cooperate with one of a plurality of apertures formed in the upper sash. The locking element C is preferably in the form of a sliding bolt, and is adapted to cooperate with the aperture D formed in the lower portion of the upper sash B when it is desired to lock the sashes in a closed position, or one of a series of apertures 1) formed in one of the vertical side rails of the sash B, whenever it is desired to lock the sashes in a partially open position. The bolt C is slidingly mounted in a bore 1 formed in the upper portion of the lower sash A that alines with the aperture D in the sash B when the window is closed, and said bolt preferably consists of a cylindrical portion 2 that is of approximately the same diameter as the bore 1 and the aperture D, a reduced portion 3 that eX- tends from the portion 2 to a point adjacent the inner face of the sash A, and an integral head t arranged on the end of said reduced portion.

Means is provided for preventing the complete withdrawal of the bolt C from the sash A, said means consisting of a pair of superimposed disks 5 and 6 that are provided with oppositely disposed slots 7 and 8 that extend from the center outwardly to the periphery of said disks. The slots 7 and 8 of the disks 5 and 6 are of approximately the same width as the diameter of the reduced portion 8 of the bolt C, and said disks are adapted to be slipped over said reduced portion when the bolt C is in operative position, with the slots 7 and 8 thereof oppositely disposed, as shown clearly in Figs. 2 and 8. By arranging the disks 5 and 6 about the portion 3 of the bolt G in the manner just above described and thereafter fastening said disks to the sash A, by means of screws 9, or other suitable fastening devices, a member is formed having a circular opening therein that snugly engages said reduced portion 3 and which prevents the bolt C from being entirely withdrawn from said sash, as the shoulder formed at the junction of the portions 2 and 3 of said bolt will strike against the disk 6 and thus limit the movement of said bolt.

Means is provided for preventing the bolt C from being forced out of engagement with the aperture D by shaking, jarring or by vibration of the window, said means preferably consisting of a plate 10 that is loosely pivoted at 11 to the disk 5, so that, owing to gravity, said plate normally lies directly in front of a head 4 when the bolt C is in operative position, and thus prevents said bolt from being accidentally retracted. When it is desired to release the bolt C, so as to render same inoperative, the plate 10 is manually swung about the pivot point 11 so that the head 4 will clear said plate, and thus permit the bolt C to be withdrawn. lhe plate 10, besides retaining the bolt 0 in operative position, bears against the head thereof and prevents the same from rattling. The aperture D that is formed in the lower portion of the upper sash B is used when it is desired to lock the sashes together in a closed position, but when it is desired for ventilating purposes to lock said sashes together in a partially open position, one of a series of apertures D is utilized to cooperate with the locking device C, said apertures D being protected by means of a plate 12that lies across the open ends thereof and is connected to the,

side rail of the sash I5, by'meansof suitable fastening devices 13, and which is provided with perforations that aline with the apertures D. I

F roin the foregoing it will be seen that I have provided a simple and etlicient sash fastener that will securely lock the sashes of a window in either closed or partially open position, and which is constructed in such a manner that it cannot be tampered with from the outside of the window, or be shaken or jarred out of its locked position.

Having thus described my invention, what I claim is:

1. In a sash fastener, the combination of a locking element arranged in one sash of a window, and means on the other sash that cooperates with said locking element for locking said sashes together, said locking element consisting of a bolt provided at its inner end with a head and a comparatively long reduced portion adjacent said head. and a pair of superimposed disks provided with oppositely extending slots that em brace said reduced portion and which are connected to the sash that carries said locklng element.

2. In a sash fastener, the combination of the upper sash of a window provided with a plurality of apertures, a lowersash provided with a locking element that coop erates with one of said apertures, said looking element consisting of a headed bolt having a comparatively long reduced portion adjacentthe .head thereof, a pair of disks provided with oppositely disposed slots that snugly embrace said reduced por tion and which are connected to said lower sash, and a swinging plate pivotally mounted on one of said disksand whlch 1s adapted to drop by gravity across the head of 3 said locking device when the same is in operative position.

8. A sash-fastener comprising a slidable locking element carried by the lower sash of a window that cooperates with one of a series of apertures formed in the upper sash so as to lock said sashes together, said locking element consisting of a member having a cylindrical portion of approximately the same diameter as said aperture, a rea downwardly extending slot that snugly embraces said reduced portion; and a plate pivotally mounted on said second mentioned disk in such a manner that gravity causes the same to lie in front of the head of'said locking element when said element is in operative position.

In testimony whereof I hereunto affix my signature in the presence of two witnesses. this eighth day of August 1914:.

a I DAVID 'A. LYNN.

Witnesses: I

GEORGE R. "Larson, GEORGE BAKEWELL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, I). G. V 

